What is the length of the arc with a measure of 200° in a circle of radius of 31 inches

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias